Age of Universe

The stronger the gravity the slower the time.

Time is relative. We know from Einstein that my clock and your clock will not run at the same rate. Time (or rate of our clocks) depends on acceleration and/or gravity. If my clock accelerates and/or is in a strong gravitational field then it will run slower than your clock.
Quran 22.47 compares time on Earth with
time at Paradise/Hell (1 day
vs. 1000 years). While
Quran 70.4 compares time on Earth with
time in wormholes (1 day
vs.
50,000 years).

Moslems believe that Paradise and Hell are both much bigger and much more massive than Earth (but still much smaller than God's Throne). The theory of general relativity says that time passes slower near an object more massive than Earth (clocks run slower in stronger gravitational fields). So according to general relativity, time should pass in Paradise/Hell much slower than on Earth.
This was known recently, however this was
portrayed in the Quran 1400 years before it was
discovered. In the Quran 1 day in Paradise/Hell measures a 1000 years on Earth.

[Quran 22.47] They challenge you to bring forth that torture [in Hell] and Allah will not break His promise; a day of your Lord [Paradise/Hell promise] is like a thousand years of what you count.

Here God promises those who do
not believe in Hell and punishment that each day
of their torture in Hell will measure a thousand
years on Earth. So according to the Quran, time
passes faster on Earth than in Paradise/Hell.
But this agrees with the theory of general
relativity which says that time passes slower
near bigger mass. Paradise and Hell are much
more massive than Earth and time should pass
there much slower than on Earth.

Christians believe that God
created the universe in 6 earthly days and
rested on the 7th. Moslems believe that 6 days
passed at God's Throne but we experienced 13.7
billion years on Earth. Moslems believe that God
is not bound to His Throne; rather He created it
and set it as a reference. The Quran says that
God's Throne is even wider than the whole
universe, so how about the mass of God's Throne?
God's Throne is much more massive than Earth.
Time should pass there much slower than on
Earth.

Our solar system is 4.57
billion years old. Earth started accreting
concurrently with the sun and our neighbouring
planets 4.57 bln years ago. However the
universe is 13.7 ± 0.2 bln years old. This
places the age of Earth at one third the age of
the universe (4.57 bln/13.7 bln = 1/3). In the
Quran God's Throne is used as a reference. In God's Throne time Earth is 2 days old
while the Heavens, Earth and everything in
between are 6 days old (2/6 = 1/3):

[Quran 7.54]
And your Lord, Allah, who created the Heavens and the Earth
in six days and then settled on the Throne...

Those six days are on the Throne; so the frame of reference for
creation is the Throne, not Earth.

[Quran 41.9] Say: "Is it that you deny Him [Allah] who created the Earth in two days? And you claim others to be equal to Him? He is the Lord of (all) the Worlds."

[Quran
50.38] And we have created the Heavens and Earth and
EVERYTHING IN BETWEEN in six days and We
were not touched by fatigue.

All those days are on the Throne; the frame of reference
for creation is the Throne.
When God says that He created the Heavens,
Earth and EVERYTHING IN BETWEEN (including you and me) in six days this means that He is
referring to the period of existence. Earth has been in existence for 2 days
out of 6 (2/6 = 1/3).

Moslems believe that God sustains all living
things. And all His commands to the angels to
sustain man and animals were inscribed on the
Preserved Tablet. The Quran says that not even a
leaf would drop on Earth without it being
previously recorded on this Preserved Tablet.
God says that He inscribed this Preserved Tablet
before the creation of Earth started; He
answered our prayers today (as commands for the
angels on the Preserved Tablet) during the first
four days when Earth was still smoke. After this
He ordered Earth to form.

[Quran
41.9-12] Say: "Is it that you deny
Him [Allah] who created the Earth in two days?
And you claim others to be equal to Him? He is
the Lord of (all) the Worlds." He set on it
(Earth) mountains, and bestowed it with
blessings. And [Allah] estimated all its
sustenance in four days, equally for those who
ask (prayers) AFTER THIS (Thumma in Arabic)
[Allah] commanded the heaven and it was still
smoke. He said to it and to Earth: "Come
together, willingly or unwillingly." They said:
"We do come together, in willing obedience". So
[Allah] judged them as seven heavens (one above
the other) in two days and revealed to each
heaven its orders. And We [Allah] adorned the
lowest heaven with lights, and protection. Such
is the decree of the Exalted; the Knowledgeable.

God answered our prayers today when Earth was
still smoke (the first four days). After this
(Thumma in Arabic) God ordered Earth to form.
The formation of Earth took two days. So our
prayers today are already answered on the
Preserved Tablet since before the formation of
Earth started. Also in the first two days God
judged the seven superimposed heavens and
revealed His orders to the angels (as
instructions on the Preserved Tablet).

In God's Throne time, Earth is 2 days old while the Heavens, Earth and everything in between are 6 days old. This makes the age of Earth to be one third the age of the universe (2/6 = 1/3). Similarly in Earth time, the age of Earth is 4.57 billion years while the age of the universe is 13.7 billion years; this is also one third (4.57 bln/13.7 bln
= 1/3). So it is the same ratio in Earth time or in God's Throne time. The theory of general relativity explains why time at God's Throne passes slower than on Earth. General relativity explains why 6 days passed at God's Throne but we measured it as 13.7 billion years (that is each day at God's Throne measures around 2.28 billion years on Earth).
So according to the Quran:

God's Throne >Paradise/Hell >Earth

The smaller the mass, the faster the time.

We are sure that time is relative, that is,
the age of the universe is different for observers with clocks
running at different rates. For example, there exists an observer who
measures the age of the universe to be 3 billion years, however
he also
measures the age of Earth to be 1 billion years. But the Quran presented it as a
ratio (1/3)
and this ratio turned out to be correct for any observer (whatever the clock rate). If the Quran
presented it in any form other than a ratio it would have
been wrong for different observers.

To Christians

[Quran 42.14-15]
They only disbanded after they received knowledge (of their Bible) fallaciously among them. And if it were not a word from your Lord [Allah] that postponed it to a later date, it would have been all settled among them then. And those who inherited the Book (the Bible) from them are in great suspicion of it. Therefore call them (to the Quran) and straighten your ways as you are ordered and don't follow their passions and say: "I believe in what Allah revealed of the Book (The Quran) and I was ordered to be just among you (both Christians and Jews); Allah is our Lord and your Lord, we have our actions and you have your actions, no argument between us and you, Allah brings us together and to Him we are (all) destined."

To Muslims

[Quran 6.108]
Do not curse those who call (to worship) other than Allah, so that they don't curse Allah out of spite and ignorance. This is how We [Allah] appealed to each people its own actions; then they will be brought back to their Lord [Allah] who will inform them of what they have been doing.